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WOODRUFF GL'PALMERL I Gas Regulator. No. 12,844. Patented May 8. 1855.

N. RETERS Pholo-Lilhngmpiwr. Washinginn, 04c

TadwhbmdifimaycOnceTn a 1 "Be it known th at fwd, Gnoiiea" B. Wool)-fRUiQE-aIidUAMEs 'N. riMiiRgof'the city and county-: ofNewLHavenandfState of Con necticut, have invented anew and usefulImprovementunApparatus for Regulating" and:Equalizi11g* the'Flow of Gas;and we -doYhereby declare thatv thefollowing is a 1full,clear andexactdescription of the same, reference: being] had to the accompanyingdrawing,fllformirig part of. this specification, in which; y} a a aigure l, is a' centrjal vertical section of a gafs' regulatorconstructed according to our invention. Fig, 2 i's another centralyertical sectionf, takenjatrightfangles to Fig; 1. Similar lettersofreference "indicate corre spending part's in bothf figures.1. h a A,B,are two cylinders arranged one within the other, ith; ajcornmunicationall aroundfthefbottomiias fsho wn at a, a, which.

siphon. Thespace O;between theitwo cylr inders constitutes anair-chamber having communication with the atmospherethrough 1 two smalltubes 22, 6, at the'top, see Fig; 2; andthe interior of the :1 cylinder13, is whatweterm the gas chamber. The horizontal areas of these lchambers maybe either equal or unequal. a, l a D, is th inletand'E,,thefioutletof thepipe which supplies theburners, the inlet havingtwo communications with the outlet, viz

- tionyalve, F and another throughthe seat ofanother induction valveG,thence through i the Chamber B, andypassage C.; The gas chamber-isalways kept filled with gas the pressure of which variesuthe sameas itdoes 40 in the pipefl tlhe valves F, and Gr, are of conical form, and*close downward. They are attached to a rod cl, which isfconnected iwiththe float Hwhich rests on the water, oil a or other liquid, representedinblue color in ithelower part ofthe gas chamber. The gas land airchambers are supplied with water to such a height as to give the valvesa full opening when the burners are all open and a the pressure at thelowest. As the pressure in the pipe tends to increase either by reasonof increasedpressure' on the main acting on burners acting onthe outlet,thepressure in v "face of the water in the chamber B, and de- "pressesthe level thereof by forcing into one directly through a the seat of aninducthe inlet or by the closing of'some of the the chamber B, increasesand actsonthe sur- ,DQDRilFE ANDJi iv. PALMER, OF NE HAVEN, CONNECTICUT.

:makes them eqiiivalent to an inverted and d d, twovalves' connectedtherewith Zby the two rodse, e, which WOIklOOSGlY through the tubes6,1), the bottoms of which form seats; for the valves. Under ,allordinary variations of the pressure of the gas flless opening to thevalves ,sure on the inlet.

f ra es Irat afi ivoffiasa i, aataiyra s, 1855.

the airchamber C, until the greater" head in G, balances the pressure inB. The float H falls with the level of the water in the chanr \berB, andbrings down the valvesto contract the openings. f the pipedimin'isheseither by diminution of pressureon the main or by opening more When thepressure in burners the pressure in B diminishes and j the water risestherein and by raising the fioatopens the valves.

Thus it is only necessary to have the valves properly proportioned tothe rise and fall of thelevelof the waterin the chamber B to make thepressure at the outlet E oflthe pipe perfectly uniform 5 under'allvariation's of pressure at the inlet, D. The pressure on the outletmay be increased or diminished at pleasureby adding to or taking fromthe quantity of water in the chambers;B,,C,so as to give a greater orwith a given prec- I is a ringshaped float in the air chamberthevalvesneverreach theirseats and the space within the tubes around therods is sufficient for the free ingress and egress of air, ,to and fromthe chamber 0, as the column of water in it rises and falls, but if thepressure in B, is increasedto an extraordinary degree, the valves closethe tubes by the rise of the float I consequent upon the increased headof water in C, and the air being confined'in the upper part of O, iscompressed before the water in B, canbe pressed ,downbelow theregulating float H, to such a tension as to resist the further rise ofwater. The point at which the escape'of air is stopped, may be regulatedby screwing the pipes 72, 6, up or down and provision is made for thatadjustment by fitting them to a screw easily, into the top of the cha nber. Below the chamber is a waste chamber J, to which when there is toomuch water ,in the apparatus, it escapes from the chamgas by any suddenincrease of pressure in a.

the pipe and in the chamber B, caused by shutting oil a number of lightsor by other means, the valve F is not secured in a fixedposition on thestem like the valve Gr, but is fitted so as to be capable of slidingupward. The rod (Z is provided with a collar or stop 9 to support it insuch a position relatively to the valve F, that both might close to'gether if permitted to do so, and it is confined to the collar 9 by aspring h, of only suflicient strength to bear the greatest ordinarydegree of pressure of gas required at the outlet E. Now if the pressurein the gas chamber were ever to be sufiicient to reduce the level of thewater therein low enough for the float to close the valves, before theycould close entirely, the underside of the valve F would receive nearlythe full pressure which there was at the inlet D, and as the valve G,closed, the pressure on the valve F, would overcome the spring h, andcause it to slide up the rod, thus preventing it closing and holding itopen until enough of the gas in the chamber B had escaped and beenconsumed, to reduce the pressure sufficiently for the valve G to open.

Instead of making the air and gas chambers with upright sides aninverted frustum of a cone may be substituted for the cylinder B tocause the as chamber to enlarge downward and the air chamber to enlargeupward and thereby give a slower movement to the valves with a givenincrease or diminution of the pressureof the gas.

Having thus fully described our invention we will proceed to state whatwe claim and desire to secure by Letters Patent.

1. e claim: The employment of adjustable escape tubes or passages b, b,at the upper part of the air chamber in connection with valves attachedto a float I which rises and falls with the water in the air chamber,the said valves acting substantially as herein described to close thesaid tubes or passages to confine the air in the air chamber when thewater or other liquid reaches a certain level therein and thus preventthe water being in the gas chamber, pressed down 'below the regulatingfloat H.

2. Vs claim: The employment of two induction valves F, G, arranged andconnected by a spring 71,, in such a manner that when the pressure ofgas in the gas chamber increases to such a degree that the action of thefloat would close both of the said valves and entirely shut ofl' thegas, the said spring will yield to the ressure of the gas upon the underside or tront of one of the valves and allow that valve to remain openuntil the pressure in the gas chamber is reduced and the level of theliquid therein is restored sufficiently to open the other valve,substantially as herein set forth.

Witnesses I. A. Woon,

CHARLES Ivns.

